SOLUTION: Hello, having issues with this question, please help Using the digits 0 � 9, find out how many 4 digit passcodes (Like 0056 or 3984) can be configured based on the stated condi

Question 729777: Hello, having issues with this question, please help
Using the digits 0 � 9, find out how many 4 digit passcodes (Like 0056 or 3984) can be configured based on the stated conditions.
The passcode must begin with an odd digit and end with an even digit. (Repetition OK)

Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!
Since digit one must be odd, it can only be 1,3,5,7 or 9. That means there are 5 possible digits for the first digit.

Digit two and three can be any digit from 0-9, so each one has 10 possible digits.

Since digit four must be even, it can only be 0,2,4,6,8. That's 5 possible digits for the fourth digit.

Since the digits can repeat, you can multiply the number of possible digits for each place.

5*10*10*5 = 2500 possible 4-digit passcodes.

RELATED QUESTIONS
Hello, having issues with this question, please help. Using the digits 0 � 9, find... (answered by fcabanski)

How many diffrent passcodes afe there in a four digit code with number 0 to... (answered by fcabanski)

Hello, I am having issues with this problem...I understand that I have to square both... (answered by jim_thompson5910)

PLS HELP... ASAP... 1. Write all the three digit numbers using the digits 4,6 and 8... (answered by edjones)

A student was asked to form two-digit numbers using the following digits:... (answered by ikleyn)

Please help me with this question How many four digit numbers, which are not... (answered by jhaashok630)

Hi, Hello i am Vanessa my daughter is really having hard time with this and i would... (answered by ankor@dixie-net.com)

A student was asked to form two-digit numbers using the following digits:... (answered by ikleyn)

The access code consists of four digits. The first digit cannot be zero and the last... (answered by ikleyn)